Acetylene-gas machine.



Patented Apr.- 3, |900.

J MCLEAN AGETYLENE GAS MACHINE.' (Appnmn med .my 2e, 1899) (No Model.)

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NITED ASTATES PATENT OFFICE.

JHN MOLEAN, OF ORMSTOVN, CANADA.

Ac ETYLEN E-eAs MACHINE.

SPECIFICATION forming part of Letters Patent N o. 646,452, dated April 3, 1900. Application filed July 26,1899. Serial No. 725,207. (No model.)

To all whom, it may con/cern,.-l

Be it known that I, JOHN MCLEAN, a subject of the Queen of Great Britain, residing at Ormstown, in the county of Ohateauguay, in the Province of Quebec, Canada, have invented a new and useful Acetylene-Gas Machine, of which the following is a specification.

My invention relatesto improvements in acetylene-gas machines; and the object of the invention is to devise a simple and compact form of machine designed to work automatically in the manufacture (from the carbid of calcium) of pure gas not 'liable to smoke; and it consists, essentially, of a generator provided with carbid-buckets set one on top o f the other surrounded bya gas-holder or gas-v ometer, to which the water is supplied from a cistern placed above the gas-holder through a curvular tube connected with the generator, the various parts of the machine being constructed in detail as hereinafter more particularly described.

Figure l is a sectional perspective view of the machine, showing the interior arrangement of the gasometer and generator. Fig. 2 is a detail of the combined carbid-bucket, handle, and support.

A is the gasometer, having a Well formed centrally thereof by the casing c. Y

B is the dome or gas-holder.

O is the generator.

c are the carbid-buckets, which are placed one on top of the other, being supported by a specially-constructed handle c, which folds inside to hold the bucket above or turns out to be handled with greater ease, as desired. The carbid-buckets are placed'in a pail c2, made to tlt loosely inside the generator. This pail has a Wire handle c3, by which it is read- :ily lifted out of the generator when the outside casing of the same is removed. Thispail stands on legs c4, which extend upwardly from a diaphragm forming the upper Wall of the Water-chamber d, located at the bottom of the open-ended cylindrical casing C, surrounding the pail c2.

The outside casing of the generator C is held in place by straps D, which are securely soldered at the bottom of the generator. These straps at their upper ends have orifices, through which a bolt E passes, the straps being retained in this position bya wire loop e. These bolts extend close to the orifice, where the water-supply stop-cock is screwed into the lid ofthe generator, thus preventing any chance of the bolts *being withdrawn before the stop-cock is removed, averting danger of explosion by allowinga moderate ingress of air and also preventing the machine from being started until the bolts are in position. The straps D, with the boltsE passingthrough them, retain the outer casing of the generator firmly in position.

The water-supply pipe F, with a stop-cock fat its lower end, is made in the form of a trap, thus preventing the gas from escaping and too great a rush of water into the genera- 'tor from the cistern G, which is connected to the water-supply pipe by a flexible tube f. The cistern G has a small stand-pipe g, with perforations g"'at the lower end and a weight-valve g2. This weight-valve is attached to the dome by means of the chain g3. This chain runs over a pulley-wheel g4 at the top of lthe cistern, immediately above the stand-pipe g. When the gas-holder is down, the valve is open, and the Water rushing through' the flexible tube f into the pipe F and from thence through to the rst bucket filled with carbid immediately forms gas, which passes down the passages C2, through the opening H and rthe water at the base of that opening, and from there is driven by the constantly-increasing pressure of the gas into the pipe I, which vhas a safety extension el leading to the refuse receptacle. pursuing its course passes up through the eX- tension I/ of the pipe I, raising the gas-holder of the gasometer and dropping the valve g3, thereby cutting off the supply of water. As the weighted dome or gas-holder B descends the gas is forced through the supply-pipe J to the various uses to which it is to be applied, and as the dome thus descends the valve g2 is again raised 'and allows a fresh supply of water into the generator. As the Water flows in it gradually fills the uppermost bucket and decomposes the carbid until the bucket@ is filled, when the perforations c5 in the sides of the bucket cause it to overllow int-o the one immediately below, and so on, ,until it reaches the lowermost bucket.

The generator is kept cool throughout by The gas IOO the constant liow of fresh Water, thereby pro-` ducing a gas of low temperature,wl1ich passes through such a small quantity of water at the lower end of the` opening H that the gas retains a great quantity of acetylene proper, which in many other modes of manufacture is lost in the Water. I have provided a customary blow-oft pipe K, with a sleeve K' t0 regulate the blow-oft' of the gas, and also the gas-supply pipe J having a safety extension into the refuse-receptacle L. Suitable outlet and lling openings for the various Waterchambers are provided, which may be arranged in any desired manner not necessary to illustrate.

What I claim as my invention isl. The combination with an annular gasometer having a Well, of a generator and car-` bid receptacle situated in the well with a trapped Watensupply pipe attached thereto at the upper end, and a plurality of carbidbuckets, with inwardly-folding handles, ar-

ranged to rest one upon the other as and for the purpose specied.

2. The combination With an annular gasometer having a Well, of a generator and carbid-receptacle situated in the Well and con nected to the water-supply bya trapped pipe and a plurality of carbid-buckets having inwardly-folding handles so arranged that the bucket next above will rest upon the handles as and for the purpose specified.

rlhe combination with an annular gasomerer having a well, and the bell of a generator and carbid-receptacle situated in the Well and connected to the Water-supply by a trapped pipe, and a plurality of carbid-buckets having inwardly-folding handles so arranged that the bucket next above will rest upon the handles, the straps securely attached to the lower end of the Well in the gasometer and extending to the top of the outer easing and locking-bolts extending through the top of the straps as and for the purpose specified.

4. The combination with an annular gasometer having a well, of a generator and carbid-1eceptacle situated in the well and connected to the Water-supply by a trapped pipe, and a plurality of carbid-buckets having inwardly-folding handles so arranged that the bucket next above will rest upon the handles, means for retaining the carbid-receptacle in positionand a Water-receptacle immediately below the generator through which the gas passes before rising into the gas-holder as and for the purpose specified.

5. The combination with an annular gasometer having a Well, of a generator and carbid -receptacle situated in the well with a trapped Watersupply pipe attached thereto at the upper end, and a plurality of carbidbuckets, with inwardly-folding handles, arranged to rest one upon the other, a cistern suitably supported above the gasometer having a stand-pipe with perforations, a dropvalve located in said pipe and connected by a cord passing over a pulley to the top of the gas-holder, such cistern forming the Watersupply for the carbid as and for the purpose specified.

Signed at Montreal, Canada, this 241th day of July, 1890.

JOHN MCLEAN. In presence of- CLARENCE MEDLEY, RICHARD COLLINS. 

